The Fish: 15 Things You Didn’t Know (Part 1)

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Fish, we think of them either as food or a colorful addition to our living room aquariums, but it turns out there are a lot of interesting things about these creatures that we are not aware of. Here is part one of our list of fascinating fish facts.

Number Fifteen: Some Can Live Out of Water

The Lungfish, to be specific, can exist outside of the water for up to several years. It has both gills and a single lung and survives out of the water by burying itself in the earth and breathing through a tube that pokes out of the ground.

Number Fourteen: Some ‘Fish’ are not Fish

Jellyfish are actually not fish, and neither are starfish. Seahorses, however, technically are. They are the only member of this species that can swim upright and are among the slowest of all swimmers.

Number Thirteen: The Lateral Line

You may have wondered how schools seem to stay in sync and all move together perfectly. They use their eyes, along with something called a lateral line, which is a row of pores with special sensing hairs inside that can pick up on water pressure changes from movement.

Number Twelve: Some Fish Are Sharks

You probably already knew that the Great White shark is a fish, but did you know that they can raise their body temperature at will? They are also the only fish that has eyelids.

Number Eleven: Communication Noises

They use a variety of sounds to communicate with each other. They wail, grunt, moan, rattle their bones and more. They do not, however, have vocal cords, and make most of these noises by moving other parts of their body. One method for this is moving their muscles against their bladder.

Number Ten: They Drink Water

It seems strange, but saltwater species have to drink a lot of water to stay hydrated. If they were to stop doing this, they would dry out very fast.

Number Nine: You Can Tell Their Age by Rings

Similar to being able to tell the age of a tree by the rings inside, the scales grow in size over time and create growth rings, which we can discern their age from. We hope you enjoyed part one of our article and be sure to check back for part two, coming soon.

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